Machine for sounding danger signals



J. R. TOTMAN MACHINE FOR SOUNDING DANGER SIGNALS Nov. 9 1,516,625"

- Filed May 15, 1922 I Wli cwes: W V fi m/[w w HM WW7 [m/emok U lftomey.

Patented Nov. 25, 1924. I

QFFICE.

JEREMY RUSSELL TO'IMAN, OF GOLUSA, CALIFORNIA.

MACHINE FOR SOUNDING DANGER SIGNALS.

Application filed May 15, 1922.

To all whom it may concern:

Be it known that I, JERETYIY Rossnnn TOTMAN, a citizen of the United States, residing at Colusa, in the county of Colusa and State of California, have invented a new and useful Machine for Sounding Danger Signals, of which the following is a specification.

My invention relates to improvements in danger signal machines in which hammers are rapidly pushed back and released; said hammers, when released, being pulled forward by springs until they strike a bell or gong, and provided with cushions which hold them on the rebound, so that the bell or gong may vibrate; said machine being operated by an electric motor which may be started at the main telephone oflice, or

other convenient point; and the objects of my improvement are, first, to provide an efiicient alarm in case of fire, or for other purpose where an alarm would be neededand, second, to provide for starting said alarm at any convenient point.

I attain these objects by the mechanism illustrated in the accompanying drawing, in which Figure 1 is a front view, showing the im provement proper; Fig. 2-, a side elevation with one standard L L, Figs. 1 and 3, removed, and Fig. 3, a back view, showing how the motor is attached.

Similar letters refer to similar parts throughout the several views.

The machine is attached to a framework Z. the hell or gong being attached above.

The hammers A A, with handles C C, which contain openings, as at X, Fig. 2, for the reception of notched push-bars D D, and the release planes E E, supported by the standards L L; also the rocking arm F, to which the connecting rod G, and pushbars D D. are attached; also the coil springs H H, and cushions I I, constitute the main parts of my improvement.

lVhen crank J, is started it pulls connecting rod G, which oscillates rocking arm F. This causes push-bars D D, to be moved back and forth.

lVhen push-bar D, on the right, is thrown far enough to the left, it engages hammer handle C, on the right, by the notch Y, falling into opening X, shown in Fig. 2. Push-bar D, thus engaged, pushes hammer handle C, with hammer A, on the right, back until the end of push-bar D, comes in Serial No. 561,176.

contact with inclined plane E, when it is raised, thus releasing hammer handle C, with its hammer A.

When hammer A, is released, it is pulled back by spring H, and strikes bell or gong and is caught and held on its rebound by cushion I. As hammer A, on the right, is being released, push-bar D, on the left, is engaging hammer handle G, on the left. It in turn is pushed back and released in the same manner as that just described.

lVhen motor M, Fig. 3, is started by switching on the electric current at any convenient point, it turns pinion P, which is connected with cog wheel N. Cog wheel N, is connected with worm reducing gear W, Fig. 3, by shaft S.

lVorm reducing gear WV, turns cog wheel 0, and cog wheel 0, transmits motion to shaft V, to which crank J, is attached. Standards U U, Fig. 2, support shaft V, and thrust collars T T, hold shaft V, in place longitudinally. Standards Q Q, Fig. 3, support shaft S, and thrust collars R R, keep shaft S, from moving longitudinally.

There may be one or more hammers.

I am aware that prior to my invention danger signal machines have been made on a small scale with electricallv driven hammers. I therefore do not claim such a 001m bination broadly; but

I claim:

The combination in a danger signal machine of a rocking arm, two hammers with handles, each handle being fastened at the end so as to swing freely, two push-bars at tached to said rocking arm, which alternately engage and disengage said hammer handles, and means for driving said pushbars backwards and forwards, said pushbars passing through a slit in said hammer handles near the middle and engaging them by means of a notch cut into the under side of said push-bars which fall by gravity when in the proper position so that said notch catches at the lower end of said slit on said hammer handles, said push-bars being disengaged from said hammer handles by their ends coming in contact with inclined planes at their extreme outward thrust, which causes them to be raised, thus allowing said hammer handles with their hammers to be freed and swing back, said hammers on said backward swing striking a bell or gong, substantially as set forth.

JEREMY RUSSELL TOTMAN. 

